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Finding the Fourth Proportional to 443,058.48, 611,427.12 and 252,067.76

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Solution

The fourth proportional to 443,058.48, 611,427.12 and 252,067.76 is: 347,857.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,058.48 : 611,427.12 = 252,067.76 : x
  2. Step 2: Convert to fraction form
    443,058.48/611,427.12 = 252,067.76/x
  3. Step 3: Cross multiply
    443,058.48x = 611,427.12 × 252,067.76
  4. Step 4: Simplify right side
    443,058.48x = 154,121,064,541.65
  5. Step 5: Solve for x
    x = 154,121,064,541.65/443,058.48
  6. Step 6: Final answer
    x = 347,857.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.